Twisting machine



Jam-26, 1932. w. w. COLLINS 1,842,932

TWISTING MACHINE Original Filed April 13, 1929 :5 s t 1 IN VEN TOR. J JY/zbm Mayfl/ J n/X7328.

A TTORNEYS.

Jan. 26, 1932.

W. W. COLLINS TWISTING MACHINE Original Filed April 15, 1929 l fsheebs-sheet' 2 ATITORNEYS.

Jan. 26 1932. w. w. COLLINS TWISTING MACHINE Original Filed April 13, 1929 3 Sheet -sh t 3 INVENTOR. Mir '07 M'qp'/ 60/129161 ATTORNEYS, I

' ed claims.

Patented Jan. 26, 1932 PATENT OFFICE WILLIAM WRIGHT COLLINS, 01E SEEKONK, MASSACHUSETTS TWISTING MACHINE Application filed April 13, 1929, Serial This invention relates to improvements in twisting machines and the like; and the object of this invention is to provide a simple and efiective twist holder which may be 5 threaded automatically by action of the machine in which it is operating.

A further object of the invention is to provide the twist holder which is carried by the twister head with a helical groove into which the strands to be twisted are drawn to hold the twist as set therein.

The invention further consists in forming this twist holder of a blade of material twisted into helical form and arranged with its axis in substantial alignment with the axis of rotation of the head, whereby the rotation of this twisted blade serves to automatically engage and carry the yarn into the helical groove therein to hold the twist in the strands during the twisting operation.

lVit-htheseandotherobjects in view, the invention consists of certain novel features of construction, as will be more fully described, and particularly pointed out in the append- In the accompanying drawings:

Fig. 1 is a plan view of my improved twisting machine. V

Fig. 2 is a side elevation of the machine 319 partly in section showing my improved twist holder in position in the twister head and also showing the threading device arranged to be positioned to thread the yarn thru the hol-' low spindle.

' Fig. 3 is a sectional view thru the twister head showing my improved twist holder as mounted in the head at the lower end of the spindle also showing the threading device as forcing the yarn thru the tubular spindle.

Fig. 4 is a perspective view showing a tapered blank of sheet metal from which the twist holder may be formed.

Fig. 5 shows the tapered blade of metal as having been twisted into the desired helical shape to receive the yarn and holding the twist therein.

Fig. 6 is a section on line 66 of Fig. 3, showing the blade as set into the head at the lower end of the tubular spindle with a. groove in the blade registering with the hole No. 354,785. Renewed Uctober 3, 1931.

in the spindle to permit threading of the yarn therethrough.

Fig. 7 is a sectional view of a yarn-threading device partly in section.

It is found in the practical operation of spinning machines that are to be run at a very high velocity, necessary to provide a yarn twist holder in the twister head with its axis in substantial alignment with the axis of rotation of the head to avoid vibration while running at this high speed; also in order to facilitate the threading operation and make sure that the head is properly threaded with out being obliged to depend upon the human element, I have formed a twist holder with a helical groove into which the yarn is automatically carried and wound about the holder by the combined rotation of the head and the endways travel of the yarn, by which construction .the spindle may be quickly and 7 easily threaded and the machine run at a speed several heunderd per cent faster" than the old style spinning machines of the ringtwisting, cap-twisting and flyer-twisting types. Also it is found of advantage to pro- 7 vide a threading-device which may be readily positioned above the end of the tubular spindle to engage and carry the thread thru the spindle to be grasped by the operator and manipulated to complete the threading operation; and the following is a detailed description of the present embodiment of my invention and showing one construction of twist holder by which these advantageous results .may be accomplished With reference to the drawings, 10 designates the end frames of the machine, which, of course, may be placed any desired distance apart or arranged to support any desired number of spaced twister heads and their operating mechanism, one complete unit only being herein shown. Each end frame is herein shown as being provided with an upwardly and forwardly extending arm 11 supporting a crossbar 12 in which the twister head 13 is rotatably mounted.

This twister head comprises a sleeve 14, see Fig.3, having a collar 15 below the hearing rail 12 with a nut 16 threaded onto the upper end to bind against the upper face of this rail. Within this sleeve is mounted a brass bushing 17 and inside of this brass bushing I mount an anti-friction bushing 18, both being secured against rotation to the sleeve 14.

Extending upwardly thru this anti-friction bearing is a yarn guide tube 19 on the upper portion of which is mounted a metal package-supporting cone 20 which is fixed to this tube by a binding screw 21, and an anti-friction ball bearing 22 is mounted in the bottom recess 23 of this cone to carry the weight of the tube and the parts secured thereto.

To the lower end of this guide tube is secured a. whirl 24. Into slots 19a at the lower end of this whirl and into the end of the tubular guide 19 I have inserted the upper end 25 of my improved yarn twist holder 26. This holder is herein shown as being formed from a strip or blade of metal, see Fig. 4, the same being preferably tapered, being wider at its upper end 25 and narrower at its lower end 28. This blade then twisted into the form best illustrated in Fig. 5, leaving a pair of laterally-extending wings 29 on its upper end to engage the yarn when the spindle starts to rotate and conduct it into the groove 30 of the blade to be wound about this memher and lie against the flat lower end 28 thereof to hold the twist in the yarn and prevent the yarn from twisting above the lower engaging end of this holder member.

The upper end of. this blade is preferably grooved longitudinally, as at 31, the groove being in line with the axis of the spindle 19 so as to permit of ready passing of the thread by means of the threading needle, thru the tube and out thru the lower end thereof, see Fig. 6.

Below this twist holder 26, I have mounted a pair of feeding nip rolls 32 and 33 which are spaced from the twist holder the required distance and those feed rolls are arranged to perform the double function of first cooperating with the twist holder 26 to hold the twist at the lower end of the twisted portion of the yarn as the twist is set therein and second they serve to feed the twisted yarn at a proportionate speed relative to the twisting speed of the twister head to accurately determine the amount of twist, per inch, that shall be set into the yarn. The bottom roll 33 of this pair of feed rolls has its bearing in the end frames and is driven in the manner presently described, while the upper roll 32 of this pair of feed rolls is mounted in the arms 34 which are pivoted at 35 in the frame to rest by its own weight upon the lower roll 33.

The yarn guiding surface of at least one of these rolls is 3neferably positioned to lead and guide the yarn in alignment with the axis of rotation of the twister head so as to reduce the travelling friction on the yarn and cause the yarn to remain in operative engagement with the rotatable twist holder.

Any desired means may be employed for taking up the twisted yarn as delivered from the feed rolls, one means being herein illustrated which is that of providing a drive roll 36 on which is mounted a package roll 37 to be rotated by frictional contact with the drive roll and the yarn 38 may be laid upon this package by the traversing guide 39 or by any of the usual packaging winding devices.

The twister head and the feed rolls are driven in time with each other from the main shaft 44, the twister head thru the belt and the feed rolls thru the train of gears 46.

In some instances it is found of advantage to provide a threading device 40 which may be mounted on the standard 41-1 and pivoted at 42 to be moved from the position shown in full lines in Fig. 2, to the operating position shown in dotted lines in which latter position it is only necessary to rotate the handle 42. which causes the threading tongue 48 to be. extended into engagement with the yarn 38 to thread it thru the tubular spindle 19 where it may be engaged by the hand of the operator to be carried down between the rolls 32-38, to be attached to the packaging mechanism above described and by the use of my improved form of twist holder it becomes antomatically threaded when the machine is started, which causes the yarn to wind itself into the groove about the twisted shank 26, thereby eliminating the human equation and the avoiding of the mistake of omitting to thread the yarn, which if omitted would spoil the yarn.

Then again, by the forming of this type of twist holder which has no moving parts and is rotated on the axial center of the twister head. the ma chine may be run at a tremendous velocity, multiplying many times the output of this machine over the old style twisters and at the same time produce a stronger yarn of higher grade with a more uniform twist.

My improved twist holder will serve to hold the twist in strands of wire, asbestos, or any other material but I do not desire to be restricted. to the use of my improved twist holder to a twisting machine as the same may be employed for holding the twist in winding machines, spinning machines and any other machine where it is adapted to operate.

The foregoing description is directed solely towards the construction illustrated, but I desire it to he understood that I reserve the privilege of resorting to all the mechanical changes to which the device is susceptible. the invention being defined and limited only by the terms of the appended claims.

I claim 1. In a twisting machine, a rotatable twister head, a tubular package carrying spindle in said head, a yarn twist holder comprising a shank member having a helically disposed yarn receiving groove therein mounted in said head at the lower end of the spindle, means spaced from said twist holder for feeding the yarn and holding the other end of the twist, and a threading device located adjacent the hollow spindle for conducting the yarn to be twisted thru the spindle.

2. In a twisting machine, a rotatable head, a tubular yarn spindle fixed in the head and through which the yarn is led, a yarn twist holding member mounted in said head at the delivery end of the spindle with its axis in substantial alignment therewith, said twist helder having a helical yarn receiving and guiding groove into which the traveling yarn is drawn, and a pair of cooperating yarn twist holding feed rolls spaced from the delivery end of said twist holder.

3. In a twisting machine, a rotatable'head, a tubular yarn spindle fixed in the head and through which the yarn is led, a yarn twist holding blade having one end mounted in said head at the delivery end of the spindle with its axis in substantial alignment therewith, said blade having a twisted portion providing a helical yarn receiving and guiding groove into which the traveling' yarn is drawn and retained to resist a relative twisting action, and a pair of yarn twist holding feed rolls spaced from the delivery end of said twist holder.

4- In a twisting machine, a rotatable twister head having a tubular yarn guiding spindle and arranged to carry a package of untwisted yarn at one end thereof and through which spindle the yarn from the package is led, an elongated yarn twist holdin g member having one end fixed in said head at the delivery end of said spindle and in substantial axial alignment therewith, said holder having a helical yarn receiving and guiding groove into which the traveling yarn from the spindle'is drawn, and cooperating yarn twist holding and feeding means spaced from the delivery end of said holder member. V

5. In a twisting machine, the combination with a hollow spindle through which the yarn blade having a twisted portion providing a helical yarn receiving groove into which the traveling yarn is drawn, the receiving end of said blade having a portion laterally oflset to provide a guide for directing the yarn to one side of the blade, and a pair of feed rolls spaced from the delivery end of said holder blade to feed the yarn and hold the twist.

7. In a twisting machine, a twisting head having a central bore through which the yarn is led, said twisting head being slotted at the yarn delivery end, and a twist holder having an elongated body portion with an axially disposed helical yarn receiving and twist holding groove, said holder being mounted in said slot in axial alignment with said twisting head.

8. In a twisting machine, a twisting head having a central bore through which the yarn is led, and a twist holder secured to said twisting head at the yarn delivery end in axial alignment with said twisting head, said twist holder having an elongated body portion with an axially disposed helical yarn receiving and twist holding groove.

In testimony whereof I affix my signature.

. WILLIAM WRIGHT COLLINS.

is led, a yarn twist holding member mounted at the delivery end of said spindle in axial alignment therewith, said twist holder having a helical yarn receiving and guiding groove along its length, means for guiding the yarn from the delivery end of the spindle to one side of said holder member, whereby I the traveling yarn is caused to enter said groove therein, and means spaced from the delivery end of said twist holder to feed the yarn and hold the twist.

6. In a twisting machine, the combination with a hollow spindle through which the yarn i 

